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Finding the Fourth Proportional to 357,627.80, 535,566.90 and 170,420.60

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Solution

The fourth proportional to 357,627.80, 535,566.90 and 170,420.60 is: 255,214.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,627.80 : 535,566.90 = 170,420.60 : x
  2. Step 2: Convert to fraction form
    357,627.80/535,566.90 = 170,420.60/x
  3. Step 3: Cross multiply
    357,627.80x = 535,566.90 × 170,420.60
  4. Step 4: Simplify right side
    357,627.80x = 91,271,632,438.14
  5. Step 5: Solve for x
    x = 91,271,632,438.14/357,627.80
  6. Step 6: Final answer
    x = 255,214.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.